ReadWriteWeb writes "In a follow-up to his Top 100 Alternative Search Engines article at the end of January, Search Engine Optimizer (SEO) Charles S. Knight has produced an updated list, featuring 32 new search engines. The criteria for the list is that search engines should exhibit superiority to Google — not as a whole, but in just one particular area. An example is "Search Engine of the Month" GoshME, a Meta-Meta-Search Engine which searches across a variety of specialized search engines and databases, then categorizes and filters the results.
Knight writes that 68 of the original 100 search engines are still firmly in the top 100, either because they have continued to improve (see Zuula), or because they have yet to be challenged (amongst the "Answers" search engines, only ChaCha uses paid guides, not volunteers or community members). This block of 68 search engines, says Knight, forms a sort of "core" representation of the new breed of alternative search engines."